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Updated: May 23, 2026
Measuring Glutathione-induced Feeding Response in Hydra
Published on: November 16, 2014
Effect of subcutaneous selenium injection and supplementary selenium source on blood selenium and glutathione
Younes Chorfi1, Vincent Girard, Alain Fournier
1Département de Biomédecine Vétérinaire, Faculté de médecine vétérinaire, 3200, Sicotte CP 5000, Saint-Hyacinthe, Quebec J2S 7C6. younes.chorfi@umontreal.ca
Abstract:
This study measured the effect on glutathione peroxidase (GSH-Px) and selenium (Se) in whole blood and plasma associated with subcutaneous Se injections in beef heifers fed organic or inorganic Se. Heifers (n = 120) were randomly divided into 2 groups, 1 of which received subcutaneous Se injections. Both groups were given the same total mixed ration with 3 mg of organic or inorganic Se daily. Until week 2, heifers that had received Se injections showed higher concentrations of plasma Se and GSH-Px and whole blood Se (P < 0.001) than those having had no injections. Concentrations of plasma Se and GSH-Px were higher in the group receiving organic Se than the group receiving inorganic Se. Whole blood GSH-Px concentrations increased significantly (P < 0.001) throughout a 12-week period but were not affected by Se source. Combination of Se injections and supplementation could help maintain normal Se and GSH-Px blood status in beef heifers during the first few weeks in the feedlot.
